Omar Khadr was 15 when he was captured in Afghanistan in 2002. He was held in Guantanamo for years without charges. He was tortured. And earlier this month, after nearly 13 years behind bars, he was released on bail.

Almost five years ago, the author’s 13-year-old niece was murdered in her bedroom in suburban New Delhi. Since then, both of her parents have spent time in jail. Evidence, bungled by police, points to another possible killer. The trial has not yet begun.